NumberResearchThousands-blocks in 978-378
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026
The ten 1,000-number thousand-blocks inside prefix 978-378 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 978 blocks
Most active assignees, all time — NPA 978
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2008-11-10 | 978-378-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | AMESBURY | MA |
| 2005-03-24 | 978-378-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | AMESBURY | MA |
| 2006-09-07 | 978-378-2XXX | 2000–2999 | Assigned | PAETEC ITEL, LLC | 829J | AMESBURY | MA |
| 2004-08-05 | 978-378-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | AMESBURY | MA |
| 2005-08-11 | 978-378-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | AMESBURY | MA |
| 2010-08-17 | 978-378-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | AMESBURY | MA |
| — | 978-378-6XXX | 6000–6999 | Assigned (pending) | AMESBURY | MA | ||
| 2025-05-05 | 978-378-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | AMESBURY | MA |
| 2026-07-30 | 978-378-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | AMESBURY | MA |
| 2021-02-19 | 978-378-9XXX | 9000–9999 | Assigned | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | AMESBURY | MA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.